{"id":16333,"date":"2002-09-04T00:00:00","date_gmt":"2002-09-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/anomalies-cromosomiques-en-avortaments-espontanis-de-primer-trimestre\/"},"modified":"2002-09-04T00:00:00","modified_gmt":"2002-09-04T00:00:00","slug":"anomalies-cromosomiques-en-avortaments-espontanis-de-primer-trimestre","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/anomalies-cromosomiques-en-avortaments-espontanis-de-primer-trimestre\/","title":{"rendered":"Anomalies cromos\u00f3miques en avortaments espontanis de primer trimestre"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Isabel Ribas Seix <\/strong><\/h2>\n<p>Se define como aborto espont\u00e1neo la interrupci\u00f3n de una gestaci\u00f3n antes de la semana 22, y a pesar de que se han descrito varios factores etiol\u00f3gicos, se desconoce la causa en la mitad de los casos. La presencia de una anomal\u00eda cromos\u00f3mica en el embri\u00f3n es la causa por el que se produce el aborto en el 70% de los casos correspondientes al primer trimestre de la gestaci\u00f3n, aunque este primer per\u00edodo es el menos estudiado debido a las deficultades que presenta el an\u00e1lisis de un embri\u00f3n tan precoz.  en este trabajo se ha tratado la gestaci\u00f3n interumpida espont\u00e1neamente exactamente igual que a la gestaci\u00f3n evolutiva a la que se quiere realizar un diagn\u00f3stico prenatal citogen\u00e9tico durante el primer trimestre de la gestaci\u00f3n: se realiza una biopsia de corion y se aplican dos t\u00e9cnicas citogen\u00e9ticas en paralelo, como son el cultivo largo y el m\u00e9todo semidirecto.  de 142 muestras de vellosidades coriales biopsiadas para este estudio, se obtuvo un resultado citogen\u00e9tico en 130, lo que supone un 91,5%. Un 67,2% de los embriones presentaban una anomal\u00eda cromos\u00f3mica y solamente 32,8% resultaron normales.  las trisom\u00edas autos\u00f3micas representaron un 70,5% del total de anomal\u00edas cromos\u00f3micas detectadas, y las m\u00e1s frecuentes fueron las trisom\u00edas para los cromosomas 16, 22 y 15. La monosom\u00eda x se hall\u00f3 en un 11,4% y las anomal\u00edas estructurales, presentes en un 9,1%, eran herencias desequilibradas en la mayor\u00eda de los casos. El 9,1% de poliploid\u00edas correspond\u00edan a seis triploid\u00edas y dos tetraploid\u00edas. Por \u00faltimo se describi\u00f3 un caso de monosom\u00eda para el cromosoma 21.  conclusiones  la presencia de anomal\u00edas cromos\u00f3micas en los abortos espont\u00e1neos de primer trimestre de la gestaci\u00f3n es un fen\u00f3meno muy frecuente, y es necesario analizar citogen\u00e9ticamente estos embriones para poder realizar un correcto asesoramiento reproductivo ante nuevas gestaciones. El mejor m\u00e9todo ha resultado la realizaci\u00f3n de una biop<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Anomalies cromos\u00f3miques en avortaments espontanis de primer trimestre<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Anomalies cromos\u00f3miques en avortaments espontanis de primer trimestre <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Isabel Ribas Seix <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/04\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Jos\u00e9 Egozcue Cuixart<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Mar\u00eda Carrera josep <\/li>\n<li>mar P\u00e9rez m. (vocal)<\/li>\n<li>carmina Comas (vocal)<\/li>\n<li>joaquina Navarro (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Isabel Ribas Seix Se define como aborto espont\u00e1neo la interrupci\u00f3n de una gestaci\u00f3n antes de la semana [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[849,212,155,35,9,9224,9399,452,11771],"tags":[51677,51674,51678,1331,51676,51675],"class_list":["post-16333","post","type-post","status-publish","format-standard","hentry","category-biologia-celular","category-biologia-humana","category-ciencias-clinicas","category-ciencias-de-la-vida","category-ciencias-medicas","category-citogenetica","category-cultivo-celular","category-embriologia-humana","category-genetica-clinica","tag-carmina-comas","tag-isabel-ribas-seix","tag-joaquina-navarro","tag-jose-egozcue-cuixart","tag-mar-perez-m","tag-maria-carrera-josep"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/16333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=16333"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/16333\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=16333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=16333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=16333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}